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Students practice using the FOIL acronym as a procedure for multiplying two binomial expressions. FOIL occurs by multiplying the First terms, Outside terms, Inside terms and Last terms.
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What's the Formula for the Square of a Difference?
The Difference Between Two Squares is an algebraic expression where two terms are perfect squares and one is negative. In this clip the Algebra teacher uses the FOIL method to factor a difference between two squares and prove the equation.
2 mins 6th - 12th Math